Flagstone Weight Calculator

Last updated: 02 May 2025 | Author: Brij | Review By: Irshad

Share on :

Easily estimate the total weight of flagstone in pounds and tons using area, thickness, and stone density. Perfect for shipping and material planning.

Length:

Width:

Thickness:

inches

Density:

lbs/ft³

Common densities: Sandstone (150-165), Granite (170-190)

Quick Density Presets:

Weight Calculation

Total Area:

ft²

Total Weight:

lbs

Weight in Tons:

tons

Planning to transport or order flagstone for your landscaping or patio project?

Use our Flagstone Weight Calculator to estimate the total area, weight in pounds, and weight in tons based on the dimensions and density of the stone.

Just enter:

Length and Width of the area (in feet)
Thickness of the flagstone (in inches)
Density of the stone (in lb/ft³)

How the Flagstone Weight Calculator Works

1. Calculate Total Area

The first step is calculating the area you plan to cover with flagstone.

Formula:

$\text{Area (sq ft)} = \text{Length} \times \text{Width}$

2. Convert Thickness to Feet

Since density is in lb/ft³, the thickness (entered in inches) must be converted to feet.

Formula:

$\text{Thickness (ft)} = \frac{\text{Thickness (in)}}{12}$

3. Calculate Volume

The volume of flagstone in cubic feet is the area multiplied by thickness (in feet).

Formula:

$\text{Volume (ft}^3\text{)} = \text{Area} \times \text{Thickness}$

4. Calculate Weight in Pounds

Multiply the volume by the density of the stone to get the total weight.

Formula:

$\text{Weight (lbs)} = \text{Volume} \times \text{Density}$

5. Convert to Tons

Finally, convert pounds to tons (1 ton = 2000 lbs).

Formula:

$\text{Weight (tons)} = \frac{\text{Weight (lbs)}}{2000}$

Example Calculation

Inputs:

Length = 15 ft
Width = 10 ft
Thickness = 2 inches
Density = 150 lb/ft³

Step 1: Area

$\text{Area} = 15 \times 10 = 150\ \text{sq ft}$

Step 2: Thickness in Feet

$\text{Thickness} = \frac{2}{12} = 0.1667\ \text{ft}$

Step 3: Volume

$\text{Volume} = 150 \times 0.1667 = 25.005\ \text{ft}^3$

Step 4: Weight in Pounds

$\text{Weight} = 25.005 \times 150 = 3750.75\ \text{lbs}$

Step 5: Weight in Tons

$\text{Weight} = \frac{3750.75}{2000} = 1.88\ \text{tons}$

FAQs

1️⃣ How much does flagstone weigh per square foot?

The weight of flagstone typically ranges from 12 to 18 lbs per square foot, depending on the thickness and the type of stone.

For example:

1-inch thick flagstone weighs about 12–15 lbs/sq ft
2-inch thick flagstone weighs about 24–30 lbs/sq ft

2️⃣ What factors affect the weight of flagstone?

Several factors influence the weight of flagstone:

Thickness — Thicker stones weigh more.
Stone type (density) — Denser stones like bluestone weigh more than sandstone.
Moisture content — Wet flagstone can be heavier due to water absorption.

3️⃣ How do I calculate the total weight of flagstone for my project?

To calculate the total weight of flagstone, multiply the area (in square feet) by the weight per square foot based on the stone thickness.

Formula:

$\text{Total Weight (lbs)} = \text{Area (sq ft)} \times \text{Weight per sq ft (lbs)}$

4️⃣ How much does a pallet of flagstone weigh?

A full pallet of flagstone typically weighs between 3,000 to 4,000 lbs (1.5 to 2 tons), depending on the stone type and thickness. Always check with the supplier for exact pallet weights.

5️⃣ Why is knowing the weight of flagstone important?

Knowing flagstone weight helps with:

Transportation planning (to avoid overloading vehicles)
Cost estimation (especially for delivery)
Structural design (if placing flagstone on surfaces that have load limits)
Labor planning (to ensure safe handling)

Check out 1 similar Flagstone Weight Calculator :

Flagstone Weight Calculator

Help Improve This Calculator

Your suggestions help us make better tools for everyone.